print("打分系统")
score=input("请输入分数")
temp_score= int(score)
if temp_score >=90 and temp_score <=100:
    print("优秀")
elif temp_score >=80 and temp_score <=90:
    print("良好")
elif temp_score >=70 and temp_score <=80:
    print("中等")
elif temp_score >=60 and temp_score <=70:
    print("及格")
else:
    print("不及格")
